It is pretty easy and not too expensive to simply purchase heavy-duty, wire mesh shelving. There are several reputable companies that make it. I have lots of it lining the walls of my garage and some of it is 8' tall, 5' wide, and has three shelves spaced approximately 18" apart. You can then mount/hang 4' fluorescent fixtures wherever you want to. The T5HO fixtures produce all the light you'll ever need and you can use 6500K and/or 4000K tubes to grow anything.